How to replace the fuel pump on a Nissan Almera: a complete guide with photos and videos

The fuel pump is one of the key elements of the fuel system Nissan Almera, on which the stable operation of the engine directly depends. When it fails, the car begins to “sneeze,” stall while driving, or refuse to start at all. In this article we will look at how replace the fuel pump yourself on Almera G15 (2013–2019) and N16 (2000–2006), without resorting to car service services. You will learn what tools you will need, how to properly remove the old pump, install a new one, and avoid common mistakes that can lead to repeated repairs.

We will pay special attention choosing a spare part: original pumps from Nissan (article 17040-JM00A for G15) are expensive, but there are decent analogues from Bosch, Denso And Valeo, which are not inferior in reliability. We'll also look into unique feature of Almera G15: when replacing the pump, the filter mesh must be replaced, even if it looks clean on the outside - this will extend the service life of the new unit by 30–40%.

Signs of a faulty fuel pump on a Nissan Almera

The first symptoms of problems with the fuel pump are often confused with malfunctions of the spark plugs, injectors or pressure sensor. However there is characteristic features, which directly point to the pump:

• 🔴 Engine won't start or starts only after a long rotation of the starter (more than 5–7 seconds).
• 🚗 Car stalls while driving, especially during sudden acceleration or on an incline.
• ⚡ “Dips” when you press the gas - rpm will drop to 500–800 rpm, then restored.
• 🛢️ You can hear it in the cabin loud hum from under the rear seat (on the Almera G15 the pump is located under the rear row).
• 🔧 Lights up on the dashboard Check Engine with errors P0171 (lean mixture) or P0190 (fuel pressure sensor circuit malfunction).

If you notice at least 2-3 symptoms from the list, the probability of pump failure is 80–90%. Before replacing, we recommend checking fuel rail pressure pressure gauge (standard for Almera G15 - 3.5–4.0 bar). If the pressure is lower 2.5 bar, the pump must be replaced.

⚠️ Attention: On Nissan Almera N16 (2000–2006) the fuel pump is located in the tank under the hatch in the trunk. On Almera G15 (2013–2019) the pump is accessed through the interior - you need to remove the rear seat. Do not confuse the models: the design of the pump mounting and connectors is different!

What tools and spare parts will be needed

To replace the fuel pump with Nissan Almera No specialized equipment is required, but some tools are indispensable. Here's the full list:

Tool/spare part	Purpose	Note
10 mm socket wrench	Unscrewing the pump mount	It is better to use an extended head
Flat blade screwdriver	Removing the Pump Retaining Ring	The tip should be thin (3–4 mm)
Pliers	Disconnecting fuel hoses	Use without teeth to avoid damaging the fittings
Hammer and wooden spacer	Carefully removing a stuck pump	Use only when absolutely necessary
New fuel pump	Replacing a faulty unit	Original or analogues: Bosch 0 580 454 035, Denso 950-0101

Also prepare rags, rubber gloves (gasoline is aggressive to the skin) and fire extinguisher — when working with the fuel system, safety is paramount. If you are replacing the pump with Almera G15, be sure to buy new mesh filter (article 16400-JM00A), since the old one becomes clogged with small particles, which reduce the life of the new pump.

Step-by-step instructions for replacing the fuel pump

Replacement process Nissan Almera G15 And N16 similar, but there are nuances. Below is a universal instruction taking into account the features of both models.

Step 1: Preparing the car

Before starting work Be sure to relieve pressure in the fuel system. To do this:

1. Turn off the ignition.
2. Remove the fuel pump fuse (on Almera G15 it is located in the mounting block under the hood, designated as Fuel Pump 15A).
3. Start the engine and let it run until it stops completely (it will stall itself when the gas in the ramp runs out).
4. Turn the ignition key to position OFF and remove the negative terminal from the battery.

Step 2: Accessing the Fuel Pump

On Almera G15:

1. Remove the rear seat (pull it up with force - it is secured with latches).
2. Under the carpet, find the access hatch to the fuel pump (fastened with 4 screws).

On Almera N16:

1. Open the trunk and remove the floor trim (it is secured with clips).
2. Under the casing, find a hatch with 6 10 mm wrench bolts.

Relieve pressure in the fuel system|Remove the negative terminal from the battery|Prepare rags and a fire extinguisher|Remove the rear seat/trunk trim|Unscrew the access hatch to the pump-->

Step 3: Removing the Old Pump

Gently disconnect electrical connector And fuel hoses (on G15 they are fixed with plastic latches, on N16 - metal clamps). Then:

1. Using a 10 mm socket wrench, unscrew the 8 nuts securing the pump (on N16 - 6 nuts).
2. Pry up the retaining ring with a screwdriver and remove it.
3. Carefully remove the pump from the tank, tilting it at an angle so as not to damage the fuel level sensor float.

Step 4: Install the New Pump

Before installing a new pump:

• 🔧 Check it out o-ring - if it has hardened or has cracks, replace it (part no. 17342-JM00A).
• 🧹 Clean the mesh of the new pump (even if it looks clean) with compressed air.
• 🔌 Make sure that the pump connector matches the original one (on Almera G15 Sometimes you come across pumps with mixed contacts).

Install the pump in reverse order, but note:

• 🔩 Tighten the fastening nuts criss-crossto avoid skew.
• 🛢️ After installation, turn on the ignition for 5-10 seconds (without starting the engine) so that the pump pumps gasoline into the system.

⚠️ Attention: On Nissan Almera N16 When installing the pump, you must align the mark on the body with the groove in the tank. If this is not done, the pump will not fit into place, and forced installation will damage the float!

Choosing a fuel pump: original vs analogues

The cost of the original fuel pump for Almera G15 (article 17040-JM00A) is 8,000–12,000 rubles, which many owners find unreasonably expensive. However, there are proven analogues that serve no worse:

Brand	Article	Price, rub.	Features
Bosch	0 580 454 035	4 500–5 500	Long service life (150+ thousand km), quiet operation
Denso	950-0101	5 000–6 000	Original supplier for Nissan, 95% reliability
Valeo	583133	3 800–4 500	Budget option, but sensitive to gasoline quality
ERA	770456	3 000–3 500	Suitable for temporary replacement, resource ~50 thousand km

When choosing an analogue, pay attention to productivity (must be at least 90 l/h) and pressure (from 3.5 bar). Cheap pumps made in China (for example, Febi or Meat & Doria) often cannot withstand loads and fail after 20–30 thousand km.

How to spot a fake fuel pump?

Counterfeit pumps usually have:

- Uneven seams on the body (the original is smooth plastic).

- Dull markings (the original has clear letters and numbers, often with laser engraving).

- Weight is 15–20% less than the original (less copper inside the winding).

- There is no protective mesh on the inlet pipe or it is very thin.

Typical replacement mistakes and how to avoid them

Even experienced car owners make mistakes that lead to repeated replacement of the pump or breakdown of other components. Here are the most common:

• 🔌 Incorrect connector connection - on Almera G15 Plus and minus are often confused, which leads to the fuse or the pump itself burning out. Check the polarity with a tester!
• 🛢️ Ignoring mesh replacement - the old grid clogs the new pump after 5-10 thousand km. Its cost is only 300–500 rubles, but the savings will result in repeated repairs.
• 🔧 Retightening the fastening nuts - this will deform the sealing ring, and gasoline will begin to seep into the cabin. Tightening torque - 7–9 Nm.
• 🚗 Starting the engine without bleeding the system — after installing the pump, you need to turn on the ignition 2-3 times for 5 seconds so that the pump pumps gasoline into the ramp.

Another critical error - use of sealant instead of the original O-ring. Over time, the sealant dissolves in gasoline, and the pump begins to “suck” air, which leads to floating speed. If the ring is damaged, buy a new one (part number 17342-JM00A), but don't skimp on sealant!

1) Connecting the power connector (there should be a click when it locks).

2) The presence of gasoline in the rail (press the spool valve on the fuel rail - gasoline should spray out).

3) Fuel pump fuse (on Almera G15 it often burns out if connected incorrectly).-->

How much does it cost to replace a fuel pump at a service center?

If you are not confident in your abilities, you can contact a car service. The cost of work depends on the region and model:

Model	Cost of work, rub.	Replacement time
Almera G15 (2013–2019)	2 500–3 500	1.5–2 hours
Almera N16 (2000–2006)	2 000–3 000	1–1.5 hours
Almera Classic (B10)	1 800–2 500	1 hour

Usually included in price not included price of spare parts and tank flushing (if required). In Moscow services for replacing the pump with Almera G15 ask until 5,000 rubles, but this is already an overpayment. In the regions, prices are 20–30% lower.

If you decide to go to the service center, check in advance:

• 🔧 Is it included in the price diagnostics (sometimes it is counted separately).
• 🛢️ Will there be clean the tank (if there is a lot of sediment in it, the pump will quickly clog again).
• 📋 Do they give guarantee for work (standard - 6–12 months).

Frequently asked questions about replacing the fuel pump on a Nissan Almera

Is it possible to drive with a faulty fuel pump?

Technically possible, but highly not recommended. A faulty pump does not create enough pressure, causing:

• The engine is running at lean mixture, which leads to overheating and detonation.
• Fuel consumption increases by 20–30%.
• The risk that the car stalls on the highway at the most inopportune moment.

If the pump "dies" gradually, you have 1–2 weeks for replacement. If it no longer pumps gas at all, you can’t drive.

How to check a fuel pump without a pressure gauge?

There are 3 ways:

1. Audition: Should be heard when the ignition is turned on. short hum pump (1–2 seconds). If it is not there, the pump does not work.
2. Voltage check: The pump connector must have 12 V with the ignition on (checked with a multimeter).
3. Direct connection: Serve 12 V directly to the pump from the battery - if it doesn’t buzz, it means it’s burned out.

Do I need to change the fuel filter when replacing the pump?

On Nissan Almera G15 fuel filter built into the pump and is replaced along with it. On Almera N16 the filter is placed separately (located under the bottom near the tank) and its it is recommended to replace, if the mileage since the last replacement exceeds 40,000 km.

If the filter is clogged, the new pump will work with increased load, which will reduce its life by 30–50%.

Why does the car start poorly after replacing the pump?

There may be several reasons:

• Air in the fuel system — you need to turn the ignition on/off several times for the pump to pump gasoline.
• Incorrect installation of the mesh - if it is skewed, the pump cannot pump enough fuel.
• Faulty pressure regulator (on Almera N16 it is taken out separately and may jam).
• Clogged injectors - if the pump “dies” for a long time, deposits accumulate in the ramp.

If the problem persists after 2-3 startup attempts, check rail pressure pressure gauge.

Can the fuel pump be repaired or is it just a replacement?

B 90% of cases the pump must only be replaced because:

• Domestic brush units wear out and cannot be restored.
• Pump housing non-removable (on most models).
• Repair costs 70–80% of the cost of a new pump, but there is no guarantee for it.

Exception - replacement mesh filter or o-ring, if the pump itself is working (checked by a tester).